170 or 225 for super 6 build?

Yes you can make it move. A 170 is a fun motor. Get with Charrlie S about really getting the most out of a 170. This is what he races with all the time. Ive seen alot of 13 sec passes with his car that weighs 3000lbs personally.
Frank

Don't forget that he's pumping a boatload of nitrous through it to run 13's.